@ericjmorey actually ive seen this happen before. It isnt that they switch the product. Its that when a product is sold in various sizes then the reviews for all sizes show in one space. In and of itself it isnt suspicious as I see it constantly on products i buy.
It also wouldnt make much sense as a business model… you’d have to spend time and money selling legit products only to sell a handful of bad ones before scrapping it. They would make more just keeping the original listing, especially when the pricing is similar.